17. Riddle of the Sphinx (Inside Series Three, Episode Three)

On a stormy night, Nina lets herself into the home of Cambridge university professor, Nigel Squires, AKA The Sphinx, who produces the cryptic crosswords for the university paper. She wants to impress her boyfriend by getting the answers for the next one...but maybe she's not the only Nina in the episode. We'd love to hear your thoughts ahead of the Series 3 Roundup Show. Email us: [email protected], or find us on Twitter: http://twitter.com/aqnin9